The slayings of four people in a fast-food restaurant were discovered Saturday after police found a take-out bag stuffed with cash during a routine traffic stop.

Two teenagers, one of them an employee of the Taco Bell restaurant in this Dallas suburb, were in custody, and charges against them were pending, police said."The motive was robbery," said Police Capt. T.J. Hall. The victims, three of them restaurant employees, were found shot to death in a walk-in freezer, Hall said.

Police stopped a car on investigation of drunken driving around 5 a.m. and found an unspecified amount of money inside a Taco Bell bag. The suspects, age 19 and 17, were arrested after a search of several Taco Bell restaurants turned up the bodies.